[Elecraft] low pass filters

[Phil Kane]

On 2/18/2019 8:41 PM, K9MA wrote:

> Here, Don is talking about external low pass filters intended to
> suppress VHF harmonics. If you live in an area where TV signals are
> weak, they may still be necessary. Of course, hardly anyone receives
> their TV service that way any more, and most TV stations have moved to
> the UHF bands, anyway.

Two assumptions that may not hold even in urban areas.  Many cable /
satellite subscribers are "cutting the cord" and going to over-the-air
reception (I use that as a backup strategy when - not if - C*cast goes
down), and because of the FCC's ill-regarded "repacking" scheme where
UHF TV channels above 37 are being "re purposed" for the "broadband"
industries' voracious need for spectrum, some urban TV stations are
going back to their pre-UHF channels.

With that said - I still use the "good old" external low-pass filter on
my K2, rather than have it gather dust in the garage. Better be safe
than sorry.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon